Nonskidding device



May 15, 1923.

A. W. OLSON 'NONSK-IDDING DEVICE Filed March 1, 1922 Patented May 15,1923 Moments Dame Lea-40s ADOLPI-I w. oLsoN, or emzrosri, MINNESOTAApplication -fi1 ed Marc h 1,1922; serial llm 540,250. 'I

To all whom it may concern:

Be itknown that I, ADOLPH W. OLSON, a citizen of the UnitedStatesgresiding atMclntosh, in the county of Polk "and State ofMinnesota, have invented certain'ne-w and useful Improvements inNonskidding Deg vices, of which the following is'a specification,reference being had to the accompany-- ing drawings. I i yThisin'vention relates to certain improvements in non-skidding devicesand it is an object otthe invention to provide a novel and improveddevice of this general character which maybe readily and convenientlyapplied to wheel and which provides means to effectually preventskidding or slippage. Another object of the inventionis to provide anovel and improved device of this general character wherein the sidemembers each constitutes a steel cable and is, therefore,non-stretchable and at the same time permits thecompleted device, whennot in use, to be rolled or compacted to occupy a minimum of space.

An additional object of the invention is to provide a. novel and Iimproved device or this general character wherein each of the treadmembers or units is formed of a metallic rod or member, bendable toprovide means to effectively resist skidding or slippage.

The invention consists in the details of construction and in thecombination and arrangement of the several parts of my improvednon-skidding device whereby certain important advantages are attainedand,

the device rendered simpler, less expensive and otherwise moreconvenient and advantageous for use, as will be hereinafter more 'fullyset forth; r

The novel features of my invention will hereinafter be definitelyclaimed.

In order that my invention may be the better understood, I will nowproceed to describe the same withreference to the accompanying drawings,wherein:

Figure 1 is a fragmentary view in side elevation of a non-skiddingdevice constructed in accordance with an embodiment of my invention;

Figure 2 is a fragmentary view in plan illustrating in detail one of thetread meme bers or units as disclosed in Figure 1;

Figure 3 is a fragmentary view partly in section and partly in elevationillustrating the means for connecting the coacting exl tremities of theside member;

Figure 4 is a fragmentary view in plan illustrating the tread men'ibei'or unit con,- structed in accordance with afurther embodiment of myinvention;

Figure 5 is a fragmentary view similar to Figure ,4, illustrating astill furtherembodlment of a tread member or unit;

Figure 6 is also a view similar to Figure 4; but illustrating a stillfurtherembodt ment of tread member or unit; L b My mproved fdevlce asherein disclosed comprises the side members (i formed of steel cables ofrequisite length, each of said,

cables having its opposite end portions provided' witha ball or head 1soldered or otherwise secured thereto, By employing the steel cables,the disadvantages of 'the side' members stretching eliminated and at thesame time thedevice in f its entirety, when not in use, canbe readilyrolledorcompaeted tooccupy a minimum of space.

'VVhen the side members C are inappli'ed position, theextremitiesthereof overlap, said overlapping portions being disposedthrough a spring clip 2 substantially U shaped in form with a ball orhead 1 at opposite sides of said clip.

Disposed through the side members of the clip 2 is a bolt 3 with whichis associated a wing nut 4 so'that, upon proper rotation of the nut 4,the clip 2 may be brought into tightcontact with the extremities of the,side members C. The balls or heads 1 provide an'effective means toprevent the extrem ities of the cables from] pulling outwardly throughthe clip 2". v

Vhen the nut l 1s rotated a direction to move away from the clip 2, saidclip, will expand sufficiently to permit the balls or heads If toreadily pass therethrough in either applying or removing the non-skiddevice.

At substantially equidistantly spaced points therealong the side membersC connected by the tread members or units M of such configuration tostraddle the tire T of the wheel structure. *Eachof the memp bers orunits M comprises a metallic rod bent into a substantially U -shape withthe extremities returned, as at 5, to provide eyes through which theside members'pass. The returned portions 5 aretightly engaged with theside members '0 so that the memare y her or unit M is' heldagainstmovement lengthwise of said side members C. Each of the tread members orunits has its central portion coiled to provide a loop 6 Whicl1,,Whenthe device is in appliedposition, is disposed at the central or treadportion of the tire T and: this loop serves effectually to preventskiddingfor'slippage,

It is also to be understood that each oft'he members or units M isofsuch size as to loosely or freely straddle. theft-ire T so that saidmember or unit M Willnot pinch or stick to the tire or otherwise injurethe same. 1

In Figure 4 is illustrated a tread me n-V beror unit M wherein thecentral'portion is coiled or twisted to provide a pair of loops 6"; thesame, When the member or unit 1s in applied position,b6l1'lg(l1S1)OSeCl;ClI'

. of said rods 7 aretWisted one around the so other, as at 8,,topr'ovide a-central loop, 9. From the foregoingv description it[ isthoughtito b'eob'viousthat a non skid ding provided with oppositelydevice constructed in accordance with my invention is particularly welladapted for use by reasonof the convenience and 'fa cility With Whichitmay be assembled and operated; and -it" will also be obvious that andmodification without departing from the principlesancl spirit thereofand for this reason I do'not Wish to be understood as limiting'myselftothe precise. arrangementand formation ofthe several parts herein shownin carrying out my invention" in practice except as hereinafter claimed.3 t I cla m: 1. A non-skidding device comprislng side members andtread-members connectingsaid my invention is susceptible: ofsome changesideinembers, each of saidtread members n (.0111 )risiiw asin le len thof material ro- F7 5 b y vided with ,a coil at its central portion tooverlie "the central portion of the tread 0f thetire When thedeviceis'in applied ,posi: tion/ bers comprising a single length ofmaterial I directed loops at the central portion.

signature. I

2. A nonskid device comprising side members, and. tread membersconnecting said side members, each of sa1dtread mem- DOLPH W. OLSON 00,In testimony whereof Ifiliereunto affix my

